An elongated,often segmented appendage usually found near the mouth in invertebrate organisms such as mollusks,crustaceans,and insects,the functions of which may include sensation,locomotion,and feeding.

• 触须细长的，通常为弓形的附属物，通常长在无脊椎动物器官的嘴附近，例如软体动物、甲壳纲动物和昆虫，其功能包括感觉、移动和喂食。